def bits_to_pretty(bits, blocksize=8):
return "%s (0x%s)" % \
(bittools.bits_to_binary_string(bits, blocksize), bittools.bits_to_hex(bits))
'''
return "0x%s %s-bit" % \
(bittools.bits_to_hex(bits), len(bits))
'''
'''
def bits_to_pretty(bits, blocksize=8):
return "%s (0x%s)" % \
(bittools.bits_to_binary_string(bits, blocksize), bittools.bits_to_hex(bits))
'''
return "0x%s %s-bit" % \
(bittools.bits_to_hex(bits), len(bits))
'''
'''
def zip_and_format(bits):
result = ""
zipped = zip(*(bits for i in xrange(64)))
width = 4
for i, item in enumerate(zipped):
if i % width == 0:
result += " "
result += "0x%sLL" % bittools.bits_to_hex(item)
if i != 63:
result += ","
if i % width == width - 1:
result += "\n"
else:
result += " "
return result
def zip_and_format(bits):
result = ""
zipped = zip(*(bits for i in xrange(64)))
width = 4
for i, item in enumerate(zipped):
if i%width == 0:
result += " "
result += "0x%sLL" % bittools.bits_to_hex(item)
if i != 63:
result += ","
if i%width == width-1:
result += "\n"
else:
result += " "
return result
decrypt = options.decrypt
else:
# 3DES is EDE / DED, so round 2 is opposite.
decrypt = not options.decrypt
result = []
for t in text:
if decrypt:
result += dsa_decrypt(t, key)
else:
result += dsa_encrypt(t, key)
if options.file:
filename = options.file + '.' + str(round) + '.'
if decrypt:
filename += 'decrypted'
else:
filename += 'encrypted'
with open(filename, "wb") as f:
f.write(bittools.bits_to_ascii(result))
# Subsequent rounds are based on the result.
text = []
for i in range(0, len(result), 64):
text.append(result[i:i + 64])
if options.ascii and decrypt:
print bittools.bits_to_ascii(result)
else:
print bittools.bits_to_hex(result)
import sys
import os.path
# Add lib/ to sys.path
lib_directory = os.path.realpath(os.path.join(__file__, "../../lib/"))
sys.path.append(lib_directory)
import bittools
if __name__ == "__main__":
key = bittools.hex_to_bits(sys.argv[1])
#for i in [63, 55, 47, 39, 31, 23, 15, 7]:
for i in [7, 15, 23, 31, 39, 47, 55, 63]:
key.insert(i, 0)
print bittools.bits_to_hex(key)
key = bittools.hex_to_bits(args[1])
# text is plaintext if encrypting or ciphertext if decrypting
if options.ascii and not options.decrypt:
text = bittools.ascii_to_bits(args[0])
else:
text = bittools.hex_to_bits(args[0])
if len(text) != 64:
if options.decrypt:
op.error("ciphertext must be 16 hex digits")
else:
op.error("plaintext must be 16 hex digits (or 8 ascii letters if using -a/--ascii)")
if len(key) != 64:
print key, len(key)
op.error("key must be 16 hex digits")
if options.verbose:
print_logs = True
else:
print_logs = False
if options.decrypt:
result = dsa_decrypt(text, key)
else:
result = dsa_encrypt(text, key)
if options.ascii and options.decrypt:
print bittools.bits_to_ascii(result)
else:
print bittools.bits_to_hex(result)
